It is imperative that you do extensive research on the house you are trying to rent with the lending companies with the area if the house is about to be taken over or in the internet if the house is already on the auction block (because these are information that most seedy landlords will left out), because once this happens and you have already payed the rent in advance, the contract will be considered null and void and it is highly unlikely
you will get your money back
At least everyone will be up front and if your on a month to month lease and want to move on, give your 30 day notice a couple days before the end of the month for the next month(check the requirement in your state).
First Weber Group
Certified Distressed Property Expert